Author/Authors :
Carugno، نويسنده , , G and Bressi، نويسنده , , G and Cerdonio، نويسنده , , S and Conti، نويسنده , , E and Meneguzzo، نويسنده , , A.T and Onofrio، نويسنده , , R and Zanello، نويسنده , , D and Beriotto، نويسنده , , U and De Biasia، نويسنده , , S and Nicoletto، نويسنده , , M and Pedrotta، نويسنده , , R and Toniolo، نويسنده , , N، نويسنده ,
Abstract :
A 64 1 liquid xenon TPC has been operated for the detection and measurement of the low energy γ rays from the decay π+→μ+ + υ + γ. We present a detailed description of the chamber, the readout electronics and data acquisition together with the measurement of the liquid xenon purity and time stability obtained during a period of about two months. The electron lifetime was always longer than 2.7 ms (95% C.L.) and no deterioration of the liquid purity has been observed. Such a purity level and stability have never been previously reported for a large volume liquid xenon chamber, making this technique mature for physical applications.
